/Engine/Plugins/Interchange/Runtime/Source/Import/Public/MaterialX/MaterialXUtils/MaterialXManager.h
Find a corresponding Material Expression Input given a (Category, Input) pair
const [FString](API\Runtime\Core\Containers\FString) * FindMatchingInput ( const TPair< [FString](API\Runtime\Core\Containers\FString), [FString](API\Runtime\Core\Containers\FString) > & CategoryInputKey ) const